Input Device and Display Device

1. An input device comprising: a first substrate having a first surface and a second surface; a first light-emitting element unit including a first electrode unit formed on the second surface and serving as a drive electrode to transmit a drive signal pulse, a second electrode unit formed in a layer different from a layer of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit; and a third electrode unit insulated from the first electrode unit and serving as a proximity detection electrode to detect a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view and output a proximity detection signal, wherein the first electrode unit includes a plurality of first conductive layers formed in one layer, wherein the second electrode unit includes a second conductive layer having a size overlapping with the first conductive layers in planar view, and wherein the third electrode unit includes a plurality of third conductive layers formed in one layer different from the layer of the first conductive layers, wherein the first conductive layers are laminated on the luminescent layer with an insulation layer interposed therebetween and have a shape continuously extending in a first direction in planar view, wherein the first light-emitting element unit is capable of emitting light along the shape of the first conductive layers, wherein the third conductive layers are laminated on the luminescent layer with the insulation layer interposed therebetween and have a shape continuously extending in a second direction intersecting with the first direction in planar view, wherein a plurality of fourth conductive layers are provided at portions where the first conductive layers intersect with the third conductive layers, the fourth conductive layers each coupling ends of the first conductive layers divided by the third conductive layers and crossing over the third conductive layers in a manner insulated from the third conductive layers, and wherein the fourth conductive layers are electrically coupled to a part of the luminescent layer via a first contact portion.

2. The input device according to claim 1 , wherein the first electrode unit includes a plurality of first conductive layers formed in one layer, the second electrode unit includes a second conductive layer having a size overlapping with the first conductive layers in planar view, and the third electrode unit includes a plurality of third conductive layers formed in the same layer as the layer in which the first conductive layers are formed.

3. The input device according claim 1 , wherein the first conductive layers are laminated on the luminescent layer with an insulation layer interposed therebetween and are scattered to have an island shape in planar view, the first light-emitting element unit is capable of emitting light along the shape of the first conductive layers, a plurality of fourth conductive layers are provided at portions where the first conductive layers intersect with the third conductive layers, the fourth conductive layers each coupling ends of the first conductive layers sandwiching the third conductive layers, and crossing over the third conductive layers in a manner insulated from the third conductive layers, a direction coupled by the fourth conductive layers extending in the first direction, the third conductive layers are laminated on the luminescent layer with the insulation layer interposed therebetween and have a shape continuously extending in a second direction intersecting with the first direction in planar view, and the fourth conductive layers are electrically coupled to a part of the luminescent layer via a first contact portion.

4. The input device according claim 1 , wherein the first light-emitting element unit includes a first light-blocking portion that is arranged closer to the first surface than the luminescent layer is.

5. The input device according claim 1 , wherein the luminescent layer has a protrusion formed such that the area of a section of the first contact portion parallel to the second surface decreases as the section comes closer to the second surface, and the fourth conductive layers are made of a metal having metallic luster and cover an inclination surface corresponding to a side surface of the protrusion inclined with respect to the second surface.

6. The input device according claim 1 , further comprising a second light-emitting element unit including a second contact portion coupled to a part of the first conductive layers extending between adjacent third conductive layers and electrically coupled to a part of the luminescent layer, wherein the first conductive layers have a shape continuously extending in a first direction in planar view and are in contact with the luminescent layer along the shape of the first conductive layers, and the first light-emitting element unit is capable of emitting light along the shape of the first conductive layers.

7. A display device comprising: an input device comprising: a first substrate having a first surface and a second surface and serving as a drive electrode to transmit a drive signal pulse: a first light-emitting element unit including a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from a layer of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit; and a third electrode unit insulated from the first electrode unit and serving as a proximity detection electrode to detect a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view and output a proximity detection signal; and a display unit provided on the second surface of the input device and capable of displaying an image on the first surface, wherein the first electrode unit includes a plurality of first conductive layers formed in one layer, wherein the second electrode unit includes a second conductive layer having a size overlapping with the first conductive layers in planar view, and wherein the third electrode unit includes a plurality of third conductive layers formed in one layer different from the layer of the first conductive layers, wherein the first conductive layers are laminated on the luminescent layer with an insulation layer interposed therebetween and have a shape continuously extending in a first direction in planar view, wherein the first light-emitting element unit is capable of emitting light along the shape of the first conductive layers, wherein the third conductive layers are laminated on the luminescent layer with the insulation layer interposed therebetween and have a shape continuously extending in a second direction intersecting with the first direction in planar view, wherein a plurality of fourth conductive layers are provided at portions where the first conductive layers intersect with the third conductive layers, the fourth conductive layers each coupling ends of the first conductive layers divided by the third conductive layers and crossing over the third conductive layers in a manner insulated from the third conductive layers, and wherein the fourth conductive layers are electrically coupled to a part of the luminescent layer via a first contact portion.